package com.heima.wemedia.interceptor;

import com.heima.model.wemedia.pojos.WmUser;
import com.heima.utils.thread.WmThreadLocalUtils;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author lzq
 * @data 2023/4/29 19:13
 */
@Component
public class WmTokenInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //获取请求头中的userId
        String userId = request.getHeader("userId");
        if (userId!=null){
            //存入线程中
            WmUser wmUser = new WmUser();
            wmUser.setId(Integer.valueOf(userId));
            //调用工具类
            WmThreadLocalUtils.setUser(wmUser);
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        //操作完毕,删除线程,释放资源  防止oow(jvm内存溢出)
        WmThreadLocalUtils.clear();
    }
}
